CAJ | 학술논문

采用静态箱-气相色谱法对手插、抛秧、机插和直播的稻田氧化亚氮通量季节变化进行了测定与分析。研究结果表明：观测期内，手插、抛秧、机插和直播样地氧化亚氮季节变化通量分别为-55．67～63．73、-53．03～70．31、-47．41～84．29、-27．38～85．10μg/（m2· h ），平均值分别为7．71、20．98、11．24、37.78μg/（m2· h）。pH和Eh对手插样地氧化亚氮通量具有显著的影响，其他处理样地则是受到多因子的综合作用。从水稻千粒质量看，4种栽培方式由小到大的排序为机插、手插、直播、抛秧，从单丛产量看，4种栽培方式由小到大的排序为手插、抛秧、机插、直播。
채용정태상-기상색보법대수삽、포앙、궤삽화직파적도전양화아담통량계절변화진행료측정여분석。연구결과표명：관측기내，수삽、포앙、궤삽화직파양지양화아담계절변화통량분별위-55．67～63．73、-53．03～70．31、-47．41～84．29、-27．38～85．10μg/（m2· h ），평균치분별위7．71、20．98、11．24、37.78μg/（m2· h）。pH화Eh대수삽양지양화아담통량구유현저적영향，기타처리양지칙시수도다인자적종합작용。종수도천립질량간，4충재배방식유소도대적배서위궤삽、수삽、직파、포앙，종단총산량간，4충재배방식유소도대적배서위수삽、포앙、궤삽、직파。
In order to clarify the effect of alternative cultivation patterns on paddy field nitrous oxide fluxes ,seasonal nitrous oxide variation of hand transplanting ,seedlings throwing ,machine transplanting and direct seeding is determined by static chamber-gas chromatogram .The results show that the seasonal variations of nitrous oxide fluxes are -55 .67~63 .73 ,-53 .03~70 .31 ,-47 .41~84 .29 and -27 .38~85 .10μg/(m2 · h) ,and the averaged values were 7 .71 ,20 .98 , 11 .24 and 37 .78μg/(m2 · h) ,respectively .Nitrous oxide values are followed the order of hand transplanting < machine transplanting < seedlings throwing <direct seeding .The pH and Eh are the most important influencing factors for hand transplanting plot and the others are influenced by the multi-factors actions .Seen from the grain ,the four different cultivation patterns are machine transplanting < hand transplanting < direct seeding < seedlings throwing and seen from single bundle yield ,the four different cultivation patterns are hand transplanting < seedlings throwing < machine transplanting < direct seeding .